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R8C2K bảng dữ liệu(PDF) 401 Page - Renesas Technology Corp

tên linh kiện R8C2K
Giải thích chi tiết về linh kiện  RENESAS MCU R8C FAMILY / R8C/2x SERIES
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nhà sản xuất  RENESAS [Renesas Technology Corp]
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R8C2K bảng dữ liệu(HTML) 401 Page - Renesas Technology Corp

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R8C/2K Group, R8C/2L Group
20. Flash Memory
Rev.1.10
Dec 21, 2007
Page 384 of 450
REJ09B0406-0110
20.4.4
EW1 Mode
The MCU is switched to EW1 mode by setting the FMR11 bit to 1 (EW1 mode) after setting the FMR01 bit to
1 (CPU rewrite mode enabled).
The FMR0 register can be used to determine when program and erase operations complete. Figure 20.17 shows
the How to Set and Exit EW1 Mode.
Figure 20.17
How to Set and Exit EW1 Mode
Write 0 to the FMR01 bit before writing 1
(CPU rewrite mode enabled)(1)
Write 0 to the FMR11 bit before writing 1
(EW1 mode)
Execute software commands
Write 0 to the FMR01 bit
(CPU rewrite mode disabled)
NOTE:
1. To set the FMR01 bit to 1, write 0 to the FMR01 bit before writing 1.
Do not generate an interrupt between writing 0 and 1.
EW1 Mode Operating Procedure
Program in ROM



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